Outside rear view mirror for commercial vehicles

ABSTRACT

A modular outside mirror assembly for a commercial vehicle incorporates an upper body anchorage  1,  which has with an upper pivot linkage  1   a,  a lower body anchorage  2  which has with a lower pivot linkage  2   a , a first mirror  3  and a holding arm  5,  onto which the first mirror  3  is fastened, and which The holding arm is disposed in the upper and lower pivot linkage  1   a,    2   a  of the upper and lower body anchorage  1, 2  is so placed, such that the sad holding arm  5  is rotatable about an axis relative to the body anchorages. Because of the Due to modular construction, a multiplicity of different mirror variants can be made are available. In the same manner, a pivoting outside mirror assembly for a commercial vehicle is made available with a first body anchorage  1,  which possesses a first pivot linkage  1   a , a first mirror  3,  a holding arm  5,  which said arm is held in the first pivot linkage and to which is fastened the first mirror  3,  and a positioning device  6  which includes In another aspect a servomotor and is so attached to the holding arm ( 5 ), that, by to pivot means of the motor  7  the holding arm  5  can be pivoted against or away from the a side of the vehicle, and about a defined turning axis.

DESCRIPTION

[0001] The present invention concerns an invention of an outside rearview mirror for commercial vehicles.

[0002] Commercial vehicles such as trucks, travel buses and the like, each possess on their driver's side, as well as on the passenger's side, at least one outside main mirror and very frequently a wide-angle mirror in addition thereto. Since the commercial vehicle, in accord with the laws of various lands, can be steered from the right or left, the mirror manufacturer must make four different mirrors available, these being for driver side and passenger side and for right steering and left steering. This obligation leads to high manufacturing costs for the different forms and associated equipment as well as to high costs of inventory for multiple versions.

[0003] Often different variants of the same mirror (for example the driver's side mirror for a left-steering vehicle) are offered, each being expensive in first cost, but on the basis of being aerodynamically favorable, in the long run, promising to be a more economical version. The said variants, up to now, require different fastening apparatuses, mirror panes, adjustment devices and the like, all of which must be designed, manufactured and held in inventory. This again presents a substantial factor in cost accumulation. Besides this, the commercial vehicle itself must be subjected to various attachment modes, including borings and the like.

[0004] Further, outside mirrors for commercial vehicles, to achieve the desired angle of sight, are installed normally on the side and/or somewhat forward on the body of said commercial vehicles. However, in many cases this is disadvantageous when driving, for example, through narrow washing lanes or during transport of the commercial vehicles on ferries or transport ships, where the vehicles are placed as closely as possible beside and nose to tail with one another.

[0005] Again, upon maneuvering in tight areas such as entries to courts, street tunnels and the like, the side and forward positions of the rear view mirrors can be inconvenient. To correct this, the outside rear view mirrors should be pivoted, so that they can be swung back against the side of the vehicle. To carry this swinging out manually would be disadvantageous, as the pivoting would also be necessary for the passenger seat mirror which is not directly reachable by the driver.

[0006] The purpose of the present invention is, accordingly, to avoid the above designated disadvantages.

[0007] This purpose is achieved by the features of claim 1 and/or claim 5.

[0008] In accord with the invention, an outside rearview mirror assembly for a commercial vehicle is constructed modularly and encompasses an upper and a lower body anchorage, each of which possesses a pivotable connecting linkage. The body anchorages can, with advantage, be mounted on a door of the commercial vehicle.

[0009] Additionally, the outside rearview mirror assembly comprises at least a first mirror, known as the principal mirror. In addition the mirror construction can include a second mirror, for instance, a wide-angle mirror. The assembly of each mirror can include a mirror pane and a positioning adjustment device for said pane.

[0010] Further, the invented mirror assembly has a holding arm, onto which the first and second mirrors are fastened by means of their said adjustment device. The holding arm is pivotally set in the respective upper and lower body anchorages, so that it is swingable about an axis relative to the said body anchorages.

[0011] Different embodiments of the holding arms can be employed in the invented outside rear view mirror construction. For example, the holding arm can be fabricated as an integral molded part, in which the positioning device is incorporated. In like manner, the holding arm can be comprised of a tubular yoke, onto which the positioning device is affixed. The first and second mirrors can, in such a case, be incorporated into a common housing in an individually separate manner, each with its own cover plates or, alternately, be affixed together to a tubular yoke in a common housing.

[0012] Where modular construction is in force, and on this account, the outside rearview mirror assembly will make use of the same upper and lower body anchorages and have the same first and second mirrors, and where any difference will lie only in the shaping of the holding arms, it becomes possible, with a relatively small number of elements, to make available a multiplicity of variations for outside mirrors. For example, a holding arm in the form of a tubular yoke can be effectively used on the driver's side as well as on the passenger's side. Likewise, the possibility exists, that a first and a second mirror in a common housing or in separate housings can be placed on both sides of the driver's cab. In this way, with very few components, the most different modular outside mirrors can be installed. These mirrors may be on either the driver's side or the passenger's side, adapted for left or right steering, and optimized from both aerodynamic and economic standpoints.

[0013] The pivoting of an outside mirror is now considered, in a case where a commercial vehicle has at least one first (upper) body anchorage, which possesses at least a first (upper) pivotable linkage and at least one first mirror. This mirror can include a mirror pane and an adjustment therefor, and one holding arm on which this first mirror is fastened by means of its positioning device. With this arrangement, according to claim 5 a positioning device is available which is enhanced by a servomotor, and with this servomotor, the said positioning device is bound to the holding arm. The holding arm, now powered by the said servomotor, by means of its first pivotable linkage, can be pivoted outward and inward in respect to the side of the vehicle.

[0014] In an advantageous manner, an invented outside mirror assembly also possesses a second (lower) body anchorage with a second (lower) pivotable linkage, in which the holder is additionally secured. In this case, the said positioning device can rotate the holding arm about the axis of rotation defined by the first and the second pivotable linkages.

[0015] In an advantageous embodiment, the positioning device encompasses a linear drive with a slide-rod, which is linkedly affixed to the holding arm and can be pushed or retracted by the servomotor in such a manner, that the holding arm pivots accordingly against or away from the vehicle side.

[0016] In another advantageous embodiment the positioning device has a rotational drive, which acts upon either the upper or the lower holding arm to pivot the said arm against or away from the vehicle side.

[0017] In an advantageous way, the positioning device can be integrated into the outside mirror assembly, wherein the servomotor may be placed in a holding arm or in a body anchorage.

[0018] In another embodiment in accord with the invention, the positioning device has a forward and a back limit switch, which confines the pivoting movement of the holding arm within a defined extended or retracted end position.

[0019] Further advantages, features and embodiments of the present invention are brought forth in the subordinate claims and become evident in the following graphically described embodiments. There is shown in:

[0020]FIG. 1: an outside mirror assembly for a commercial vehicle in accord with a first embodiment of the present invention shown in a front view,

[0021]FIG. 2: a section of the above FIG. 1 along the line A-A,

[0022]FIG. 3: an outside mirror assembly for a commercial vehicle in accord with a second embodiment of the present invention, shown in a front view,

[0023]FIG. 4 a section of the above FIG. 3 along the line A-A, and

[0024]FIG. 5: an outside mirror assembly for a commercial vehicle in accord with a third embodiment of the present invention.

[0025]FIG. 1 shows an outside mirror assembly for a commercial vehicle in accord with a first embodiment of the present invention. The outside mirror assembly encompasses an upper body anchorage 1 and a lower body anchorage 2, which is affixed on a (not shown) vehicle door. In this case, a pivotable linkage, respectively 1 a, 2 a, is indicated without detail. Further, the mirror assembly includes a first mirror (the main mirror) 3 and a second mirror (wide-angle mirror) 4, which comprise respectively a mirror pane 3 a, 4 a and a positioning device 3 b, 4 b as may be seen in FIG. 2. The positioning device 3 a, 4 a, can be, in accord with the state of the technology, either manually or electrically adjusted.

[0026] The first and second mirrors 3, 4 are in a common housing 34 along with their respective positioning devices 3 b, 4 b.

[0027] In addition, the mirror assembly has a holding arm 5, on which the main mirror and the wide-angle mirror 3, 4 are affixed by means of their positioning devices 3 b, 4 b. The holding arm 5 itself, in the form of a tubular yoke, is fastened to the upper and lower body anchorages 1, 2 in such a manner, that it can pivot in the upper and lower pivot linkage 1 a, 2 a about an essentially vertical axis. In this way, the holding arm can be swung against and away from the side of the vehicle.

[0028] The common housing 34 for the first and second mirrors 3, 4 is fastened on the holding arm 5 by means of the positioning device 3 b, 4 b.

[0029]FIGS. 3, 4 show an outside mirror assembly for a commercial vehicle in accord with a second mode of construction of the present invention. This embodiment differentiates itself from the first embodiment only in the holding arm 5. In this case, the holding arm is built of two parts, that is, with an upper part 5 a and a lower part 5 b. Accordingly, the said upper and lower parts 5 a, 5 b are respectively connected with the common housing 34 at its upper and lower ends by means of an upper and lower pivot linkage.

[0030] Common to the two embodiments is the modular construction of the upper and lower body anchorages 1, 2 as well as the first and second mirrors 3, 4 including their positioning devices 3 b, 3 a and the common housing 34. These elements are the same for varying embodiments, a fact which clearly reduces the manufacturing and the inventory costs. By means of the use of different holding arms, such as those in the first and second embodiments, modular different mirror variants can be made available. Further, if necessary, the parts can be subsequently exchanged. Especially, the common housing 34 is symmetrically constructed relative to its transverse axis. In this way, the same housing can be employed both for a left as well as a right outside mirror. This is possible because the housing 34 is rotated 180° about an axis normal to its longitudinal and transverse axes. After the said rotation, the housing 34 is affixed to tubular yoke of the first embodiment at the upper and lower part 5 a, 5 b of the holder of the second embodiment and the first and second mirrors 3, 4 are correspondingly placed in the housing 34.

[0031] In this way, the upper and lower body anchorage can be immediately and preliminarily attached to the body of the commercial vehicle, independent of any alignment of the mirror which may be desired later. Thus both the planning of the mounting of the mirror and the fastening on the vehicle is essentially simplified. Mirrors, including the mirror panes and the positioning devices can be uniformly made for all mirror variants, which is an advantage which clearly lowers the cost of production.

[0032]FIG. 5 depicts an outside mirror assembly for a commercial vehicle in accord with a third embodiment of the present invention in a top view, showing a outward extended holding arm 5 (shown in solid lines) and an inward pivoted holding arm 5 (shown in dotted lines). This holding arm 5 is pivotally retained in the upper body anchorage 1 and in the lower body anchorage 2 respectively in the pivot linkages 1 a, 2 a. A first and a second mirror 3, 4 are integrally fastened onto the holding arm 5.

[0033] Additionally the mirror assembly incorporates a loading dock ramp mirror 10 on the upper body anchorage 1, which is affixed thereto by means of a positioning device 10 a. In this said positioning device 10 a is placed a servomotor 7. With this arrangement, the servomotor 7 and the positioning device 10 a can be integrally constructed as a unit. This servomotor, which, in particular, can be an electrical rotational or linear motor, which extends (and retracts), by means of a linear drive (not shown) a slide-rod 8, which is linkedly fastened to the holding arm 5. Servomotor 7, linear drive and the slide-rod 8 form together a positioning device 6, whereby, the rotation of a rotating motor is transformed into a linear motion by means of the said linear drive. If the motor is a linear acting motor, then the said linear drive may be omitted.

[0034] If the slide-rod 8 is moved by means of the servomotor 7, then the holding arm 5, in accordance with the operating direction of the servomotor, is pivoted inward or outward relative to the vehicle side. In this way, the kinematics of the linear drive and the pushrod are so configured, that the holding arm can be pivoted to a first end position on the vehicle side, or can be pivoted to a second end position away from the side of the vehicle.

[0035] The servomotor is, for example, so controlled by means of a service position on an instrument board (not shown) of the commercial vehicle, that the holding arm 5 can be pivoted into the outward extended position or the retracted position. This arrangement makes it possible for the driver to operate the outside mirror inward or outward, while remaining in the driver's seat. This arrangement serves not only for the in/out pivoting of the passenger side mirror, but also for the in/out pivoting of the driver's side mirror, even in the case of closed windows and without any manual intervention.

[0036] In a further embodiment, not shown here, the servomotor 7 is not in the positioning device 10 a of a ramp mirror 10, but rather fastened directly on the body anchorage 1. Such an embodiment advantageously allows the subsequent replacement of an available, pivotable outside mirror with an invented positioning device.

[0037] In a further embodiment, also not depicted here, an invented outside mirror assembly possesses only one first (upper) body anchorage 1 functioning with the first (upper) pivotal linkage 1 a wherein the holder 5 is mounted to be pivotally turnable about at least one axis. 

Claimed is:
 1. A modular outside mirror assembly for a commercial vehicle which incorporates: an upper body anchorage (1), which possesses an upper pivot linkage (1 a), a lower body anchorage (2), which possesses a lower pivot linkage (2 a), a first mirror (3), and a holding arm (5) on which the first mirror (3) is mounted and which said arm (5) is seated in the upper and lower pivot linkages (1 a, 2 a) of the said upper and lower body anchorages (1, 2) in such a manner, that it is pivotable about an axis relative to the said upper and lower body anchorages (1, 2).
 2. A modular outside mirror assembly in accord with claim 1, therein characterized, in that the first mirror (3) includes a mirror pane (3 a) and a positioning device (3 b) for this mirror pane.
 3. A modular outside mirror assembly in accord with at least one of the foregoing claims, therein characterized, in that the said assembly possesses a second mirror (4), which is fastened onto the holder (5).
 4. A modular outside mirror assembly in accord with at least one of the foregoing claims, therein characterized, in that the upper body anchorage (1) and/or the lower body anchorage (2) and/or the first mirror (3) and/or a housing (34) in which at least the first mirror (3) is placed, can be mounted with different holding arms (5) from a multiplicity of different holding arms (5), which include especially a multi-part holding arm (5) or a holding arm (5) formed as a tubular yoke.
 5. A pivoting outside mirror assembly for a commercial vehicle with a first body anchorage (1) which has a first pivot linkage (1 a), a first mirror (3), a holding arm (5) which is seated in the said first pivot linkage (1 a) and is fastened to the first mirror (3), and a positioning device (6) which incorporates a servomotor (7) and is connected to a holding arm (5) in such a manner, that by means of the servo motor (7) the holding arm (5) can be pivoted to the side of the vehicle and pivoted away from the side of the vehicle about its rotational axis defined by the first pivot linkage (1 a).
 6. A pivoting outside mirror assembly in accord with claim 5, therein characterized, in that the said assembly includes additionally a second body anchorage (2), which possesses a second pivot linkage (2 a), in which the holding arm 5 is supported.
 7. A pivoting outside mirror assembly in accord with at least one of the claims 5, 6, therein characterized, in that the first mirror (3) includes a mirror pane (3 a) and a positioning device (3 b) for this said mirror pane.
 8. A pivoting outside mirror assembly in accord with at least one of the claims 5 to 7, therein characterized in that the servomotor (7) is an electrical rotational motor or is a linear motor.
 9. A pivoting outside mirror assembly in accord with at least one of the claims 5 to 8, therein characterized, in that the positioning device (6) incorporates a linear drive with a slide-rod (8), which is fastened linkedly onto the holding arm (5) and can be so actuated by the servomotor (7), that the holding arm (5) is folded against or away from the vehicle side.
 10. A pivoting outside mirror assembly in accord with at least one of the claims 5 to 9, therein characterized, in that the positioning device (6) incorporates a rotating drive, which acts upon the upper or the lower pivot linkage (1 a, 2 a) and thereby pivots the holding arm (5) against or away from the side of the vehicle.
 11. A pivoting outside mirror assembly in accord with at least one of the claims 5 to 10, therein characterized in that the positioning device (6) is at least partially integrated into the outside mirror assembly, wherein the servomotor (7 is placed) at least partially in the holding arm (5) or in a body anchorage (1, 2). 